Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. It plays a role in the development of kinase inhibitors and other targeted therapies due to the presence of the nitrobenzothiazole moiety, which can enhance binding affinity to certain enzyme active sites. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies, helping optimize potency and selectivity in drug candidates. Also utilized in the preparation of fluorescent probes and labeled compounds for biochemical assays, leveraging the electron-withdrawing nitro group for tuning photophysical properties.